Volvo S80 CEM synchro

**g5n14** · 9th April, 2020, 09:51 PM

Did not check, customer said it was. But.... looks like immo is on, no squirts + FF in synchro area (just tried writing ECU eeprom again and it went FF after first start). I heard that in early s80 synchro in 28f400 dump was in some other place, other than codecard soft checks.

**MartiLer** · 9th April, 2020, 09:51 PM

read the keys.

**MartiLer** · 9th April, 2020, 09:57 PM

read the keys

**g5n14** · 9th April, 2020, 09:58 PM

What you mean? Transponder ID? Have only one key

**g5n14** · 9th April, 2020, 10:12 PM

Just found that topic on mhh:

Guys are saying that 95p08 doesnt work with carprog soft. Need to change synchro in 28f400 to make it same like in ori ECM eeprom. Sounds right? Or we can change 95p08 manually. If someone could tell me adress where synchro is in 95p08 and 28f400

**janusz21** · 9th April, 2020, 10:31 PM

tray this cem

**g5n14** · 9th April, 2020, 10:42 PM

Originally Posted by janusz21

tray this cem

Is it manuaali synched with ori ECU eeprom data? I have only 4-5 tries until 28f400 legs will start to fall off

**g5n14** · 10th April, 2020, 12:11 AM

Thanks a lot! Figured out the logic which you used for that conversion, did the same conversion and my file matched yours 100%. But i think maybe BD and 14 is CS and we should also change those bytes accordingly?

Anyway looks pretty good, will try tomorrow and if it doesnt work then we have to figure out the CS calculation algo or wait for someone with ori tango and volvo calc, because tango can calculate ecm into cem synch.

**g5n14** · 10th April, 2020, 06:55 PM

Hey guys i need some help!

Couldnt erase the TB28F400B5B with Willem PCB5.0 programmer.

Reads fine, verify fine, erasure and programming gives VPP Range error.

anyone knows solution? There is a topic on DK and guy just cleans the legs on adapter. I have cleaned them and moved the chip for like 8 hours now and i really start to lose hope.

**janusz21** · 10th April, 2020, 07:18 PM

Look this
https://www.digital-kaos.co.uk/forum...M-Thread/page5

http://www.digital-kaos.co.uk/forums...=1#post3196027

flash is very sensitive to soldering temperature , I read tl866 no problem only clean adapter

**g5n14** · 10th April, 2020, 07:32 PM

what you mean by soldering temp? It is in tsop48 adapter right now, i can read it ok, but can't erase. there is 0 dirt on chip or adapter, there is something wrong with jumper settings i bet, but i can't find any adequate instructions on willem jumper settings.

**janusz21** · 10th April, 2020, 08:31 PM

soldering hot air in pcb ,i don't know i don't have wilem i use tl866

**g5n14** · 10th April, 2020, 09:55 PM

Hey! Programmed the chip, figured out the problem with programmer. But now with both files (stock and test) I have only relay clicking in CEM and nothing works. Soldering 100% ok tested many times, what is the problem now?
Readed the flash again, 100% same file as I flashed there. Need help!

**janusz21** · 10th April, 2020, 10:20 PM

se pm ,,,,,,,,,,,,,,,,,,,,,,,,,

**solarsun** · 10th April, 2020, 10:25 PM

Originally Posted by g5n14

Hey! Programmed the chip, figured out the problem with programmer. But now with both files (stock and test) I have only relay clicking in CEM and nothing works. Soldering 100% ok tested many times, what is the problem now?
Readed the flash again, 100% same file as I flashed there. Need help!

I think all here trying to helped you but you don't help them

did you replace battery in your test ? Do you have good power... ?

Change battery with new one and have stable supply when you make installation must be at least 12 V at least 5 A.

Also reload files to check syncro cause if you test without good power your files maybe damage again and post also transponder read of id 48 ...